Kill memclear_highpage, unused.

Do not forget to call flush_dcache_page in
memclear_highpage_flush, this is used for truncate
operations.

1 files changed, 1 insertions, 11 deletions

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 8f375350f..118afad79 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -95,17 +95,6 @@ static inline void clear_highpage(struct page *page)
 	kunmap(page);
 }
 
-static inline void memclear_highpage(struct page *page, unsigned int offset, unsigned int size)
-{
-	char *kaddr;
-
-	if (offset + size > PAGE_SIZE)
-		BUG();
-	kaddr = kmap(page);
-	memset(kaddr + offset, 0, size);
-	kunmap(page);
-}
-
 /*
  * Same but also flushes aliased cache contents to RAM.
  */
@@ -117,6 +106,7 @@ static inline void memclear_highpage_flush(struct page *page, unsigned int offse
 		BUG();
 	kaddr = kmap(page);
 	memset(kaddr + offset, 0, size);
+	flush_dcache_page(page);
 	flush_page_to_ram(page);
 	kunmap(page);
 }